Device for connecting air-hose to pneumatic-tire valves.



c. w; BECK.

DEVICE FOR CONNECTING AIR HOSE T0 PNEUMATIC TIRE ,VMlVES- APPLICATION FILED mm. 15, 1912.

1,21 1 ,387, Patented Jail. 9,1917.

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CHARLES w. BECK, F EOcKvILLE CENTER, N WYORk, AssiG'NoR, BY MESNE ASSIGN- MENTS, T0 BECK-FROST or mcmcm.

CORPORATION, 0E D TROI MICHIGAN, A CORPORATION DEVICE FOR commc'rme aIn-HosE '10 rnEumaric-rmn vA vEs.

To all whom it may concern: Be it known that I, CHARLES useful Improvements in Devices for Connecting Air-Hose to Pneumatic-Tire Valves,

7 of which the following is a'specification.

The main object of this invention is to provide means fonquickly and rigidly-connected from the valve, or blown off, by the air pressure.

Another object of the invention is to provide a connecting device which may be interlockedj with the threads on the tire valve by a partial rotation of one member of the locking device, so that the device may be very quickly attached to the tire-valve, and readily disconnected therefrom.

Another object of the invention is toprovide a device of simple construction, which may be readily and cheaply'manufactured and which will be durable and efficient in use.

In the drawing, Figure 1 is a longitudinal central sectional view of the device attached to an air-hose and applied to a tire-valve; Fig. 2 an end view of the-device with the parts in their locked position as shown in Fig. 1; Fig. 3 a view similar to Fig. 2 with the parts in their unlocked or released position; and Fig. 4 a partial central longitudinal sectional view with the parts in position shown in Fig. 3, that isto say in their unlocked or released position.

Referring to the various parts by numerals, l designates a tire valve, which, as in the usual practice, is provided with areduced externally threaded endv2. The connecting device consists of a base or body part3 having a tapered outer end over wh1ch the air hose 4 is forced; and with an externally threaded part 5 on which the hose-retaining sleeve 6 is threaded. This sleeve 6, clamps the air hose on the tapered part of the base, as indicated clearly in Fig. 1.

W. BECK, a citizen of the United States, and resident of Rockville Center county of Nassau, State of New York, have invented certain new and The base or body-part of the connecting Specification of Letters Patent. 2 Pat t Jan, 7,

Substitute for application Serial No. 605,752, filed January 31,1911. Serial No. 684,077.

This application filed March 15, 1912.

device is formed at itsfree end witha longitudinally extending central recess or cavity 7 which 1s shghtly enlarged at its inner end to form an annular cavity -8. This cavity is for the reception'of a yielding sealing-plug 9, preferably of rubberor similar'material. Thls rubber sealing plug slightly larger .in diameter than\tl1e;.;recess-7 and when forced through said'frec'es's into the-cavity 8 expands andfills said cavity. After it has expanded in the fca vityas, it will be held therein against? accidental" displacement.

end thereof be broughtto bear directly on The cavity-or'recess- 'iiis-slightly larger in- 'dlameterjthan the reduced-threadedendof', f the t1re;va -l-ve .sQthatsaidfportion of'the vv'alve'may beinserted in said cavity and the 1 '70 I the yieldable sealing-plug9,asshown clearly in Fig.1 of the drawing; The base or body part of theconnectingdevice is bored longitudinally to permit of the passageof air therethrough and in the 'outer end thereof 1s fixeda longitudinally apertured, rigidv valve opening plug '10. This rigid plug extends through 'the yieldable sealing plug and its outer end is formed with a transverse out 11 whose inner end .is in communication with the longitudinal aperture of the ,plug as shown clearly in the drawing. When the threaded reduced end of'the tire valve is inserted in the cavity 7 and brought against the seat formed by the yieldable sealing plug 9, the end of the. rigid plug 10 engages the stem 12 of the tire-valve and unseats the same, so that the air may pass freely from the air hose into the tire. A portion of the stem of the tire valve is shownin Fig. 1

of the drawing. It will, of course, be under stood that the outer end'of the rigid valveopening plug 10 projects outwardly beyond the outer surface ofthe sealing-plug, so that when the tire valve is brought to rest on the 1 yieldable seat 9 the said valve-opening plug 10 will" project slightly'into the tire-valve casing 2. While the valve opening pluglO is shown'asthreaded into the base or body part ofv the-connecting devicd'it is obvious that itmay be secured therein in any su1table manner. 3

To lock aid rigidlyv hold the connecting device to the threaded e'nu;of the tire-valve casing I provide two oppositely disposed radiallymovable locking-jaws 13,, whose mner surfaces are serrated to adapt them to engage and fit into the threads onthe tirevalve casing. Each of these j-aws is formed with a body part 14; which is adapted to reciprocate through radial slots 15 formed in the base 3 near the outer end. thereof, said slots opening into the central cavity or recess 7. Each jaw is formed on its inner surface. with the inwardly extending teeth 16 which are adapted to fit into and engage the external screw threads on the tire valve casing. Each jaw is also formed at its outer end with a head 17 which limitsthe inward movement of the jaw, as shown clearly in Figs. land 2, the inner surfaces of said heads being-adapted to engage, or approximately engage, the outer surface of the base or body part of the connecting device when the inner toothed or serrated ends of the jaws are engaged in the threads of the valve cas ng- To move the locking jaws inwardly to bring their serrated or toothed ends into engagement with the threads of the tire valve casing, a rotatable cam-sleeve 18 is-mounted on the outer end of the body part 3, said sleeve being formed at diametrically opposite points, with recesses 19. These recesses are enlarged at 20 as shown clearly in .Figs. 2 and 3 and are reduced at 21, also shown in said figures. Between the two portions of the recess 19 is formed a cam surface 22 which is adapted to engage the outer surfaces of the heads of the gripping-jaws to force them inwardly when the cam-sleeve is rotated in the direction indicated by the arrows in Figs. 2 and 3. When the cam-sleeve is rotated to the position shown in Fig. 3,

' the locking jaws are free to move outwardly into the enlarged portion 20 of the recess 19.

In this position of the sleeve the large portions of'the recess 19 are in a position to receive'the jaws and to permit them to move.

radially outwardly and this permits the serrated or toothed ends of said jaws to be drawn 'out of the cavity 7, as shown clearly in Figs. 3 and 4 of the drawing. .The de vice is then in position to be placed over the end of the tire valve casing. By a slight rotation of the cam-sleeve, as indicatedv in Fig. 3, the cams 22 will engage the headed ends of the clamping-jaws and force them inwardly, thereby permitting: the reduced portions of the recesses 19 to be brought into ine withthe heads 17 of the clamping-j aws, the outer walls of said reduced portions of the recesses then retaining the locking-jaws 1 in their inner. locked position, as shown of the valve casing on the teeth of the locking dogs would be such as to force the said jaws outwardly. To force the jaws inwardly'and to lock the device to the air hose it is only necessary to give the camsleeve a partial rotation in the direction indicated by the arrows in Figs. 2 and 3. v

The end walls 23 and 24 of the recesses 19 form stops which are adapted to contact with the sides of the locking jaws to limit the rotation of the cam sleeve.

The cam sleeve is formed with slots 25 which open into the recesses 19,-as shown clearly in Figs. 2 and 4, and said slots are primarily formed large enough to permit the heads of the jaws 13 to pass through them. By this means the cam sleeve may be passed over the end of the body part'or base of the connectingdevice and interlocked with the heads of the clamping jaws. When the cam sleeve is thus placed in position the metal around the slots is crushed or'forced inwardly to partially close the slots, as indicated inFigs. 2 and 4:, to prevent the disengagement of the cam sleeve from the base piece. It will, of course, be understood that these slots may be closed by a suitable means and in any suitable manner.

means for locking the air hose to a tire valve which may be operated to connect or disconnect it from the tire valve by less than a quarter turn of the cam sleeve, and which when in position will be as securely held as it would be if a regular screw-threadedconnecting means were employed which had to be rotated many times to properly connect the air hose tightly to the air valve casing. It is manifest that my device has many other advantages. I

What I claim is:

1. A device of the class described comprising a base longitudinally bored ,and formed with a longitudinally extending cavity at one end, a yieldable seating plug in said cavity, a rigid valve-opening plug projecting into said cavity, said plug being bored forv the passage of air, a pair of radially movable locking jaws carried by said base and adapted. to .project into the said cavity outside of or beyond the yielding seating plug and formed with threadengaging teeth on their inner surfaces, heads formed on the outerends of said jaws, said heads engaging the outer surface of the base'to limit the inward movement of said jaws, a cam ring carried by the said base and inclosing and protecting the jaws and formed with recesses to receive the outwardly projecting head portions thereof,

' the outer walls of said recesses forming cam 1 0 surfaces adapted to'force' the jaws inwardly when the cam sleeve. is rotated in the proper direction, the end walls of said recesses forming stops to limit the rotation of the cam sleeve in either direction.

2. A device of theclass described comprising a base longitudinally bored and formed with a longitudinally extending cavity at one end, a yieldable seating plug in said'cavity, a rigid valve-opening plug projecting into said cavity, said plug being bored for the passage of air, a pair of radially movable locking jaws carried-by said base and adapted to project into the said cavity outside of or beyond the yielding seating plug and formed with threadengaging teeth on their inner surfaces, heads formed on the outer ends of said jaws, said heads engaging the outer surface of the base to limit the inward movement of said jaws, a cam ring carried by the said base and inclosing and protecting the said jaws and formed with recesses to receive the outwardly projecting head portions thereof, the outer walls of said recesses forming cam surfaces adapted to force the jaws inwardly when the cam sleeve, is rotated in the proper direction, the end walls of said recesses forming stops to limit the.

rotation of the cam sleeve in either direction andthe heads of the jaws locking the cam ring to the base.

3. A device of the class describedv comprising a base longitudinally bored and formed with a longitudinally extending cavity atone end, a yieldable seating plug in said cavity, a rigid valve-opening plug projecting into said cavity, said plug being bored for the passage of air, a pair of radially movable locking jaws carried by said base and adapted to project into the said cavity outside of or beyond the yielding seating plug and formed with threadengaging teeth on their inner surfaces, heads formed on the outer ends of'said jaws, said heads engaging the outer surface" of the base to limit the inward movement ofsaid jaws, a cam ring carried by the said base and formed with recesses to receive the outw'ardlyprojecting head portions of the locking jaws, the outer walls of said recesses orming cam surfaces adapted to force the jaws inwardly when the cam sleeve is rotated in the proper direction, the end walls of said recesses forming'stops to limit the rotation of the cam sleeve in either direction and the heads of the jaws locking the cam ring'to the base, the cam ring being provided with longitudinally extending slots adapted to be brought into' register with the heads of the locking jaws when said camxring is in" it's unlocked position.-

4. A device of vthe class described com- I prising a base formed with a longitudinally Y jaws outside of the base and within the said ring, said heads fitting in recesses formed in the cam ring and serving to lock said ring to the base.

5. A hose coupling, comprising a-base, a

radially movable jaw engaged with said base and formed with thread engaging teeth on its inner surface a cam ring rotatably carried by the base for forcing said jaw inward when said ring is rotated, and means upon said jaw for locking the ring to'the base.

6. A device of the class described, comprising a base formed with a longitudinally extending cavity at one end, a pair of radially movable jaws oppositely mounted, in the walls of said cavity, formed with screw engaging teeth at their inner ends, and having heads at their outer ends, and a cam ,ring rotatable upon said base, and formed with recesses to receive the heads of said jaws-said cam ring being rotatable to force said, jaws inward, the engagement of the dogs with said base and ring acting .150 prevent displacement of the ring fromthe base.-

7. 'A device of the character described, comprising a base having a cavity for the reception of athreadedmember, and having a portion for engagement with a hose, said portion being formed with an air passage extending to said cavity, a cam ring mounted uponthe base, and a pair of locking jaws mountedin opposite slots in the wall of said cavity, said jaws having their adjacent ends formed with teeth for engaging the threads of a member introduced. into said cavity, the cam ring having radial slots to allow introduction of the dogs into the same. a y

In testimony whereof I hereunto afiix my signature in the presence of two witnesses.

1 j CHARLES W. BECK.

' Witnesses: SARAH J. Arman,

W. S. MCDONALD. 

